<template>
  <div class="login-container">
    <themeSwitch class="theme-switch" />
    <div class="login-card">
      <div class="title">
        <img src="@/assets/img/logo.png" />
      </div>
      <div class="content">
        <el-form
          ref="loginFormRef"
          :model="loginFormData"
          :rules="loginFormRules"
          @keyup.enter="handleLogin"
        >
          <el-form-item prop="username">
            <el-input
              v-model.trim="loginFormData.username"
              placeholder="用户名"
              type="text"
              tabindex="1"
              :prefix-icon="User"
              size="large"
            />
          </el-form-item>
          <el-form-item prop="password">
            <el-input
              v-model.trim="loginFormData.password"
              placeholder="密码"
              type="password"
              tabindex="2"
              :prefix-icon="Lock"
              size="large"
              show-password
            />
          </el-form-item>
          <el-button
            :loading="loading"
            type="primary"
            size="large"
            @click.prevent="handleLogin"
            >登 录</el-button
          >
        </el-form>
      </div>
    </div>
  </div>
</template>

<script lang="ts">
import { reactive, ref } from "vue";
import { useRouter } from "vue-router";
import themeSwitch from "@/components/themeSwitch/index.vue";
import { type LoginRequestData } from "@/api/login/types/login";
import { type FormInstance, FormRules } from "element-plus";
import { User, Lock } from "@element-plus/icons-vue";
import { useUserStore } from "@/store/modules/user";

export default {
  components: {
    themeSwitch,
  },
  setup() {
    const router = useRouter();
    /** 登录表单数据 */
    const loginFormData: LoginRequestData = reactive({
      username: "admin",
      password: "12345678",
    });
    /** 登录表单校验规则 */
    const loginFormRules: FormRules = {
      username: [{ required: true, message: "请输入用户名", trigger: "blur" }],
      password: [
        { required: true, message: "请输入密码", trigger: "blur" },
        { min: 8, max: 16, message: "长度在 8 到 16 个字符", trigger: "blur" },
      ],
      code: [{ required: true, message: "请输入验证码", trigger: "blur" }],
    };

    /** 登录表单元素的引用 */
    const loginFormRef = ref<FormInstance | null>(null);
    /** 登录按钮 Loading */
    const loading = ref(false);

    /** 登录逻辑 */
    const handleLogin = () => {
      loginFormRef.value?.validate((valid: boolean, fields) => {
        if (valid) {
          loading.value = true;
          useUserStore()
            .login(loginFormData)
            .then(() => {
              router.push({ path: "/" });
            })
            .catch(() => {
              loginFormData.password = "";
            })
            .finally(() => {
              loading.value = false;
            });
        } else {
          console.error("表单校验不通过", fields);
        }
      });
    };

    return {
      loginFormData,
      loginFormRules,
      handleLogin,
      User,
      Lock,
      loading,
      loginFormRef,
    };
  },
};
</script>

<style lang="scss" scoped>
.login-container {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  min-height: 100%;
  .theme-switch {
    position: fixed;
    top: 5%;
    right: 5%;
    cursor: pointer;
  }
  .login-card {
    width: 480px;
    border-radius: 20px;
    box-shadow: 0 0 10px #dcdfe6;
    background-color: #fff;
    overflow: hidden;
    .title {
      display: flex;
      justify-content: center;
      align-items: center;
      height: 150px;
      img {
        height: 100px;
      }
    }
    .content {
      padding: 20px 50px 50px 50px;
      :deep(.el-input-group__append) {
        padding: 0;
        overflow: hidden;
        .el-image {
          width: 100px;
          height: 40px;
          border-left: 0px;
          user-select: none;
          cursor: pointer;
          text-align: center;
        }
      }
      .el-button {
        width: 100%;
        margin-top: 10px;
      }
    }
  }
}
</style>
